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Finding the Fourth Proportional to 34,745.83, 52,128.46 and 13,672.87

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Solution

The fourth proportional to 34,745.83, 52,128.46 and 13,672.87 is: 20,513.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,745.83 : 52,128.46 = 13,672.87 : x
  2. Step 2: Convert to fraction form
    34,745.83/52,128.46 = 13,672.87/x
  3. Step 3: Cross multiply
    34,745.83x = 52,128.46 × 13,672.87
  4. Step 4: Simplify right side
    34,745.83x = 712,745,543.65
  5. Step 5: Solve for x
    x = 712,745,543.65/34,745.83
  6. Step 6: Final answer
    x = 20,513.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.